Determination of Ti and Ti Migration into Polypropylene Pellets for Infusion Container by Microwave Digestion-GFAAS

OBJECTIVE To develop a method for determination of Ti and Ti migration into polypropylene pellets for infusion container by GFAAS. METHODS The sample was digested by microwave digestion, using GFAAS to determine the content of Ti. RESULTS The method has a linear range of 0?200 ng·mL^-1(r=0.999 9). The average recovery of Ti was 97.22%(RSD=3.91%). CONCLUSION This method is accurate, sensitive, simple, it can be used for determination of Ti and Ti migration into polypropylene pellets for infusion container.